As the title says I left my IPTV as it was when everything went down, it's now come back online but I have a slight problem, every now and then the screen goes black and then it resumes, it's not buffering it just displays a black screen & the sound cuts out then a few seconds later it resumes, can't really watch anything due to this issue, any ideas what would be causing this? Using the Smart IPTV app, not sure what provider I'm with, would anyone know how I find this out?